LazyGraphRAG alternatives

Performs minimal up-front indexing; defers LLM use until query time. Announced Nov 2024; per a Microsoft Research editor's note (2025-06-06) it ships inside Microsoft Discovery (Azure agentic science platform) and Azure Local services (public preview) rather… Full LazyGraphRAG record →

  1. 1 KAG Retrieval-as-memory hybrids

    also in Retrieval-as-memory hybrids · same storage (graph) · same retrieval (graph-traversal, hybrid-rerank) · same memory unit (chunk) · also open source · also self-hostable

    OSS ✓ Self-host ✓ Managed ? MCP ? ★ 9.0k released 2025-06-28 Apache-2.0 Compare with LazyGraphRAG →

  2. 2 LightRAG Retrieval-as-memory hybrids

    also in Retrieval-as-memory hybrids · same storage (graph) · same retrieval (graph-traversal) · same memory unit (chunk) · also open source · also self-hostable

    OSS ✓ Self-host ✓ Managed ? MCP ? ★ 39k released 2026-09-02 MIT Compare with LazyGraphRAG →

  3. 3 HippoRAG / HippoRAG2 Retrieval-as-memory hybrids

    also in Retrieval-as-memory hybrids · same storage (graph) · same retrieval (graph-traversal) · same memory unit (chunk) · also open source · also self-hostable

    OSS ✓ Self-host ✓ Managed ? MCP ✓ ★ 4.0k released 2025-06-24 MIT Compare with LazyGraphRAG →

  4. 4 PathRAG Retrieval-as-memory hybrids

    also in Retrieval-as-memory hybrids · same storage (graph) · same retrieval (graph-traversal, hybrid-rerank) · same memory unit (chunk) · also open source · also self-hostable

    OSS ✓ Self-host ✓ Managed ? MCP ? ★ 376 MIT Compare with LazyGraphRAG →

  5. 5 HiRAG Retrieval-as-memory hybrids

    also in Retrieval-as-memory hybrids · same storage (graph) · same retrieval (graph-traversal) · same memory unit (chunk) · also open source · also self-hostable

    OSS ✓ Self-host ✓ Managed ? MCP ? ★ 557 MIT Compare with LazyGraphRAG →

  6. 6 LightRAG Retrieval-as-memory hybrids

    also in Retrieval-as-memory hybrids · same storage (graph) · same retrieval (graph-traversal) · also open source · also self-hostable

    OSS ✓ Self-host ✓ Managed ? MCP ? ★ 39k released 2026-09-02 MIT Compare with LazyGraphRAG →

  7. 7 m_flow (M-Flow) Retrieval-as-memory hybrids

    also in Retrieval-as-memory hybrids · same storage (graph) · same retrieval (graph-traversal) · also open source · also self-hostable

    OSS ✓ Self-host ✓ Managed ? MCP ✓ ★ 4.5k released 2026-08-03 Apache-2.0 Compare with LazyGraphRAG →

  8. 8 HippoRAG 2 Retrieval-as-memory hybrids

    also in Retrieval-as-memory hybrids · same storage (graph) · same retrieval (graph-traversal) · also open source · also self-hostable

    OSS ✓ Self-host ✓ Managed ? MCP ? ★ 4.0k MIT Compare with LazyGraphRAG →

Ranked by shared memory design (storage, retrieval, conflict handling, memory unit), same section and shared must-haves (open source, self-hosting, MCP), with adoption as a tie-breaker. ✓ confirmed · — no · ? not in the catalog yet. Want picks for your own requirements? Use the chooser. Checking a whole project? Check your stack.